Your daughter is so cute! My son's hair is (in my opinion) 3a/b on the crown and then 3c underneath. He has a good amount of shrinkage as well. This is what I have learned about his hair so far:
The amount of shrinkage that I get is dependent on what kind of tools I use. If I use a TangleTeezer I get more. If I use a shower comb or a vent brush I get less.
Heavier products give him more shrinkage. I love to use Qhemet CocoTree Detangling Ghee (a tiny amount) mixed with a little water. Apply in sections and comb through. His hair stays moisturized and forms lovely spiral springs.
Lighter products give him more shine and the spirals on not as tight.
To help control the frizz, which he gets mostly on the crown I use a little bit of EcoSTyler Olive Oil. Keeps his hair frizz free and has a touch of hold and his curls don't look dried out at the end of the day. Of course, if he takes a nap, all bets are off.
Our daily routine would be something like this (I do not wash his hair every day. Maybe twice a week or once a week depending on what kind of products I've been using): Spritz hair with plain water. If hair has been washed day before detangle with TT. Take small amount of Eco Olive Oil and rub in downward motion onto crown and in front. Rub the residue on hands on the length of his hair. Comb through with either brush or TT (depends on what kind of curls I want). Put just a tiny, tiny dab extra on crown and bang area for hold and extra frizz protection.
Once hair has been styled do not touch again.
I think something like that may work for your daughter. The Eco Olive Oil is not hard or crunchy on his hair and keeps the frizz down and doesn't dry it out.
If he needs moisture (a couple of days after wash or a rough sleep session or something) then I use a little Qhemet B Amla or Burdock root mixed with a couple of drops of water. Then finish with the tiny bit of Eco Olive on top for the frizz.
I prefer to use more of a lotion type on his hair. The best product, my favorite product for him is, sadly, not available in the US but it works like a dream. It is a detangling conditioner that gives great, shine and big bouncy curls. I am planning on trying the Oyin Hair Dew when summer rolls around.
What kind of tools and products do you use on her hair?